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2021-10 Security Bulletin: Northstar Controller: Apache ZooKeeper component allow remote attackers to steal information using cross-site tracing (XST) attacks (CVE-2004-2320)

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Article ID: JSA11244 SECURITY_ADVISORIES Last Updated: 13 Oct 2021Version: 1.0
Product Affected:
This issue affects NorthStar Controller 5.1, 6.0, 6.1, 6.2.
Problem:

A configuration weakness in the JettyAdminServer dependency for the Apache ZooKeeper component of Juniper Networks NorthStar Controller allows an attacker to debug web server connections using the TRACE and/or TRACK methods which can allow remote attackers to steal information using cross-site tracing (XST) attacks in applications that are vulnerable to cross-site scripting (XSS) attacks to successfully access a session token.

This issue affects:

Juniper Networks NorthStar Controller

  • 5.1 versions prior to 5.1.1;
  • 6.0 versions prior to 6.0.3;
  • 6.1 versions prior to 6.1.0 Service Pack 3;
  • 6.2 versions prior to 6.2.0 Service Pack 1.

Juniper SIRT is not aware of any malicious exploitation of this vulnerability.

This issue was discovered during external security research.

This issue has been assigned CVE-2004-2320

Solution:

The following software releases have been updated to resolve this specific issue: NorthStar Controller 5.1.1, 6.0.3, 6.1.0 Service Pack 3, 6.2.0 Service Pack 1, and all subsequent releases.

This issue is being tracked as 1536485.

Workaround:

To work around this issue manually edit the zookeeper cfg file and disable the admin port on port 8080.

First, edit the zoo.cfg file located at /opt/northstar/thirdparty/zookeeper/conf/zoo.cfg

and add this at the end:

#disable admin server
admin.enableServer=false

Then restart zookeeper.

Note: This option will disable the adminserver which by default is listening on port 8080.

Implementation:
Software releases or updates are available for download at https://support.juniper.net/support/downloads/
Modification History:
2021-10-13: Initial Publication.
CVSS Score:
5.3 (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N)
Severity Level:
Medium
Severity Assessment:
Information for how Juniper Networks uses CVSS can be found at KB 16446 "Common Vulnerability Scoring System (CVSS) and Juniper's Security Advisories."

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